Page 268 - DSOC404_METHODOLOGY_OF_SOCIAL_RESEARCH_HINDI

lkekftd 'kks/ dh i¼fr

uksV gyµ (i) lekarj ekè; dks vkèkkj ekudjµizLrqr iz'u esa lekarj ekè; ls ekè; fopyu fudkyus osQ fy,
loZizFke lekarj ekè; fudkyuk gksxk] tks fd fuEu izdkj gksxkµ
etnwjh dk ;ksxµ å x = 120 $ 135 $ 142 $ 135 $ 148 $ 155 $ 135 $ 125 $ 146 $ 160
$ 150 ¾ å x ¾ 155A
n = 11 (etnwjksa dh la[;k)
∑ x 1551
\ lekarj ekè; (M)= = = 141
n 11
\ M = 141 #i;s
vc bl lekarj ekè; dks è;ku esa j[krs gq, ekè; fopyu Kkr djus osQ fy, fuEu rkfydk cukuh gksxhµ

etnwjh (#ú esa) lekarj ekè; (X – M)
(X) (M) = ‘d’*
120 141 (120 – 141) = 21
135 141 (135 – 141) = 6
142 141 (142 – 141) = 1
135 141 (135 – 141) = 6
148 141 (148 – 141) = 7
155 141 (155 – 141) = 14
135 141 (135 – 141) = 6
125 141 (125 – 141) = 16
146 141 (146 – 141) = 5
160 141 (160 – 141) = 19
150 141 (150 – 141) = 9

n = 11 åd = 110

uksV~l blosQ x.kuk esa $ vFkok µ dk dksbZ è;ku j[kus dh vko';drk ughaA

vc ekè; fopyu dk lw=k yxkrs gq, ekè; fopyu fuEu :i esa Kkr djsaxsµ

∑ d
ekè; fopyu (M.D.) or d =
n
;gk¡] åd = 110
d = 11 (etnwjksa dh la[;k)

110
\ d = = 10
11
=10

vr% ekè; fopyu (d)= 10 #i;s

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